General description Ultimate tool against wildfire season, the Blue Pure 411 Series SmokeBlock Replacement Filter provides exceptional protection against wildfire smoke and other emissions, including toxic gases, smog, and odors. This filter is compatible with the entire Blue Pure 411 air purifier line, which includes the Blue Pure 411 Auto, Blue Pure 411, and Blue Pure 411+ air purifiers. Technical specifications Filter type: SmokeBlock Replacement Filter Compatible models: Blue Pure 411 Auto, Blue Pure 411, Blue Pure 411+ Filter lifespan: Average 6 months Particle removal efficiency: Removes airborne particles down to 0.1 microns Material: Polypropylene Color: White Package contents: 2 x Air filters Measurement allowed error: +/- 1-3 cm Usage Effectively filters dust, pollen, hair, and household odors Utilizes a 360-degree air intake for optimized airflow and performance Traps household odors, smoke, chemicals, and volatile organic compounds (VOCs) Other information Light reflection